Ammonia → HCID 19039846, compound
Reaction equation
C[O:2][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][CH:12]=1)[N:9]1[C:13](=[O:16])[O:14][CH2:15][CH:8]1[CH2:7][CH2:6]2.B(Br)(Br)Br.N>ClCCl>[OH:2][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][CH:12]=1)[N:9]1[C:13](=[O:16])[O:14][CH2:15][CH:8]1[CH2:7][CH2:6]2Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
To a solution of 4.6 g (21 mmol) of 7-methoxy-3,3a,4,5-tetrahydro-1H-oxazolo[3,4-a]quinolin-1-one in 50 ml of dichloromethane are added dropwise, at 0° C., 4.0 ml (42 mmol) of boron tribromide. After one hour, the medium is hydrolyzed by addition of aqueous ammonia to the point of neutrality. The precipitate formed is then filtered off and dried under vacuum.
Workup
- customThe precipitate formed
- filtrationis then filtered off
- customdried under vacuum
Sources & evidence
- ORD record
- ord-6b4f3198e4674e519ea3bf2e9052109e
- Source dataset
- uspto-grants-1997_06
- Patent number
- US05641785
Reaction notes
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